Solve the system of equations using the substitution method. 2x - y = - 10 y = 4x (x, y) =

A high-performance composite flywheel rotor can spin anywhere between 30,000 and 100,000 revolutions per minute. What is the range of degrees through which the composite flywheel can travel in a minute? Write your answer in scientific notation

30,944 rounded to the nearest ten thousand. use the number line to show your work.

Quadrilateral PQRS has vertices P (-3, 2), Q (-1, 4), and R (5, 0). For each of the given coordinates of vertex S, determine whether the quadrilateral is a parallelogram, a trapezoid that is not a parallelogram, or neither.

What is 2 cubed?

After a meal costing $12.50, you decide to tip the waiter 15%. How much will you tip the waiter?

Julius went on a volunteer trip to Central America and took medical supplies with him. He packed a bag with 50 pounds of supplies.

What is the unit rate for 644.8 ft in 31 s? Enter your answer, as a decimal, in the box

Solve 1/4 + 3/5 - 3/10

Add or subtract (7x^2-x-2) - (-6x^3+3)

What is the estimated value of the length of a square with an area of 200 square inches? 10.5 inches 12.1 inches 14.1 inches 25 inches 100 inches